Paperhanger&#39;s pasteboard



June 19, 1928. 1,674,320

L.s.DEAL

PAPERHANGERS PASTEBOARD Fi Ied roh 15, 1926 Patented June 19, 19128.

unirse sraras LEROY S. DEAL, OF GLEN ELLYN, ILLINOIS.

PAPERHANGEn-s PASTEBOARD.

Application led March 15, 1926. n Serial No.v94,873.

The object of my invention is to provide a foldable reinforced pasteboard divided into three sections, folding with its working surface inward; to provide for keeping the paperhangers straightedge inside of the folded pasteboard; and to provide for keeping in place. yet easily removable, on the pasteboard the Zinc strip commonly used to cut the paper on.

In the drawings Fig. lis a top plan view of my pasteboard and straightedge, unfolded and ready for use, resting onv suitable supports; Fig. 2 is an elevation showing my pasteboard completely folded and locked. with the straightedge inside; Fig. is a cross-section of my uasteboard, unfolded, in the plane indicated by line 3 3 in Fig. 1;l Fig. 4 is a cross section of my pasteboard, completely folded, with the straightedge inside, in the blanc indicated by line 4-4 in Fig. 2: Fig. 5 is an enlarged detail sectional elevation in the plane indicated by line 5--5 in Fig. 4; and F ig. 6 is a perspective view of one of the hinge-members used in my device.

Referring to the drawings, my pasteboard 11, resting on supports 12, is made in three sections, 13, 14, and 15, of a width of approximately 7, 12, and 12 inches, 'respectively, These sections are held together by' hinges 16 uniting sections 13 and 14, andl 1.9 may be automatically withdrawn below the level of the working surface 23 of pasteboard 11 whenever it is unfolded, I make shanks 24 of hinges 16 of spring metal, and

make shank portions 20, carrying joints 19,`

so short that when shanks 24 are in normal position, joints 19 lie below the level of surn face 23.

provide in their lower surfaces, for the distance of half an inch or so, adjoining recesses 18. slanting depressions 25 tov make room for the springy ends 26 of Shanks 24,

adjoining portions 20, when sectionV 13 is folded upon section 14. thereby necessitating bringing the axis of joints 19 to the level of working surface 23. It is evident that In order to make it neverthelessv possible to fold section 13 upon section 14, I e

with hinges 16 thus constructed and ar` ranged, joints 19 will automatically be withdrawn below surface 23 yby the straightening out of ends 26, snapping back out'of depressions 25, whenever my pasteboard is unfolded.

Hinges 17'rare .doublet jointed and' ari ranged so as to bring sections 14 and v15 into close juxtaposition when 'they are unfolded, but to separate them to a distance equal to the thickness'of my pasteboard, usually one-half inch, plus reinforcements, whenever section 15 is folded overupon section 14, ery ratherupon section 13 which is first folded upon section 14. My preferred methodfor constructing each hinge 17 is as follows: Two metal strips, each about one inch wide and three inches'long are each folded so vas to form a member 27 with a substantial base 28, having two flanges 29 projecting therefrom at right angles and forming aV slot30. Members 27 are then placed endv to'end so that their slots 30 are in registry with each other, and are hingedly connected by a metal strip 31, oscillatably held in each 'slot 30 by a riveted pin 32 penetrating flanges 29 and strip 31.

The openings 'for pins 32 in flanges v29 and strip 31 are so arranged that the distancev between the centers of the openings `in strip 31 is equal totwice the average distance from the centers of the openings in flanges Y 29 to the upper edges of flanges 29, plus the' thickness of my pasteboard. Strip 31 is made of sufficient. width to substantially equal the depth of slots 30, and of a length,

kbeyond the centers of the openings in it,

equal to the distance from the center of these openingsy to the bottom of slots 30. The ends of strips 31 arecut square at their upper corners 33 to conform to rthese .dimensions, andtherefore to act as stops when hinges 17 are folded, but are rounded at their lowercorners 34 to permit folding of hinges 17.y This construction has the advantage that when section 15 is folded over upon sections 13 and 14, it is brought d ee nitely into a position directly above section 14, in such manner that it is held there rigidly, with no chance for friction `between it and the other sections. Hinges 17 are preferably inserted into suitable vslots 35, cut into members 14 and 15 to accommodate flanges 29. and into adjoining depressions 36, formed in the outer or lower faces of sections 14 and 15 to accommodate basesI 28.

and areV held in place by screws 37 members 27 being preferably so diinensioner'l that when they are in the position described, the upper edges of flangesQS) are flush with surface 23. y y

In surface 23 of one of the sections of my pasteboard, prefeablynarrow section 13, there is formed a shallow longitudinal.

of its bent-over edges 42 is just iiush with surface 23.

My sections 14 and 15 are preferably re inforced by corrugated metal strips 44 which are preferably superimposed on shanks 24and bases 28, and are in part held in place by the samey screws which hold Shanks 24 and bases 28 in place.

Mystraightedge 45 is made of the same thickness as my pasteboard, and of such width, about threeand a half inches, that it just fits snugly'` into the place, between section 13 and strips 31, left between sections 14 and 15 when my paste'board is folded. In order to prevent it from sliding endwise, I provide in the adjoining edge of section 13 a projectingpin 46, fitting into corresponding hole 47 invone of the edgesl of straightedge 45, or vice versa.

To securely lock my pastehoard in folded position, I provide oscillatable hooks 48, fastened to the outer edge of sections 15, adapted and arranged to be placed in engagement with the shanks of screws 49, projecting from that edge of section 14 which adjoins .section 13 when .my vpasteboard is unfolded. Openings 50 areprovided in the Corresponding edge of section 137to receive the projecting ends of these screws when my pasteboard is unfolded.

The principal'advantages of my paste: board are as follows:

`A. While foldable pasteboards` have heretofore been used, none, as feras I am aware,

has been made, prior to my invention, which made 1t practicable to fold the hoard with its working surface to nard the inside. The

- hinges customarily used would either not permit sueh'folding, or would project above the working surface. Yet folding the working surface inward means a lgreat advantage. It `prevents. marring in transportation and otherwise, and keeps the working surface clean. l

B. No'one has heretofore provided, as

. one-half inch thick, a treble fold ma far as I know, a pasteboard which permitted a folding together of three sections. Yet in view of the fact that the customary pasteboard is about 31 inches wide, and only much better package than a mere double fold.

C. No one has heretofore provided for space inside of the folded pastelfoard forr the straightedge; yet it will readily be un derstood that it is important to preserr" the straightedge from being dented or` otherwise marredin transportation; furthermore that to transport it by itself is awkimrd, on account of its length. Hence the arrangeinentmade by me for the straightedge is of considerable advantage.

D. The Zinc strip, customarily used paperhangers as a base for their r t ry trimmer to cut on, has, as far as I am aware, heretofore always been either nailed on the pasteboard or been carried separately. When it was nailed on, the nalheadsl had a tendency to dull or otherwise damage the cutter 5` furtherniore when the zinc strip had to be replaced, as is necessary from time to time, the nails holdingit'had to be pulled, leaving holes in the pasteboard, and causi si other damage. `When the strip was carried separately, it had a tendency to slide about and had to be rolled for transportation and unrolled for work. i/Vith my arrange'n'ient the Zinc strip is always in place; no nailhcacs mar it, and it is easily replaceable without any damage whatever.

It is evident that the details of constructionv setforth by me might be changed or deviated 'from in numerous particulars without departing from the spirit and essence of my invention. All such changes I' intend to cover by my claims.

I claim 1. A paperhangers pasteboard foldably divided into two wide and one narrow section, the narrow section beinlg one of the outer ,sections and joined tothe middle section so as to be foldable upon it, and the other wide section being joined to the middle section so as to be foldable upon the narrow section, the parts being`diinensioned so as to permit a paperhangers straightedge to he placed alongside the narrow section be tween the two wide sections, in 'combination with means to. prevent said straightedge from sliding lengthwise when so placed.

`2. In combination Awithta paperhangersl pasteboard, a metallic slide entered into the working surface of the pasteboard, adapted to hold replaceably in position by means of bent-over longitudinal edges, the zinc a base for papercutting.

L s. DEAL.

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